package com.cea.papyrus.activitydiagram.tabbedproperties.section;

import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage;
import org.eclipse.uml2.uml.CallOperationAction;

import com.cea.papyrus.activitydiagram.tabbedproperties.composite.ArgumentComposite;
import com.cea.papyrus.core.editpart.IUMLElementEditPart;
import com.cea.papyrus.core.tabbedproperties.PropertyViewSection;
import com.cea.papyrus.tabbedproperties.composites.ParametersComposite;
import com.cea.papyrus.umlutils.Element;

/**
 * Section for CallOperationAction to display parameters and argument for the CallOperationAction
 */
public class CallOperationArgumentSection extends PropertyViewSection {

	/** Composite that displays parameters of the CallOperationAction */
	final private ParametersComposite paramsComposite;

	/** Composite that displays argument of the CallOperationAction */
	final private ArgumentComposite argumentComposite;

	/**
	 * Creates a new CallOperationArgumentSection.
	 */
	public CallOperationArgumentSection() {
		argumentComposite = new ArgumentComposite();
		paramsComposite = new ParametersComposite();
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void createControls(Composite parent, TabbedPropertySheetPage tabbedPropertySheetPage) {
		super.createControls(parent, tabbedPropertySheetPage);
		// set a grid Layout
		GridLayout layout = new GridLayout();
		layout.numColumns = 2;
		layout.makeColumnsEqualWidth = true;
		layout.marginWidth = 0; // remove additional spaces
		layout.marginHeight = 0; // remove additional spaces
		parent.setLayout(layout);

		GridData data = new GridData();
		data.grabExcessHorizontalSpace = true;
		data.horizontalAlignment = SWT.FILL;

		// table for Arguments
		argumentComposite.createContent(parent, tabbedPropertySheetPage.getWidgetFactory());
		argumentComposite.setLayoutData(data);

		// table for Parameters
		paramsComposite.createContent(parent, tabbedPropertySheetPage.getWidgetFactory());
		paramsComposite.setLayoutData(data);
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void refresh() {
		argumentComposite.refresh();
		paramsComposite.refresh();
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void setInput(IWorkbenchPart part, ISelection selection) {
		super.setInput(part, selection);
		Assert.isTrue(selection instanceof IStructuredSelection);
		Object input = ((IStructuredSelection) selection).getFirstElement();
		if (input instanceof IUMLElementEditPart) {
			org.eclipse.uml2.uml.Element element = ((IUMLElementEditPart) input).getUmlElement();
			if(element instanceof org.eclipse.uml2.uml.InvocationAction) {
				CallOperationAction caction=(org.eclipse.uml2.uml.CallOperationAction)element;
				Element utilElement = new Element(caction);
				argumentComposite.setElement(utilElement);
				if(caction.getOperation()!=null){
					paramsComposite.setElement(new Element(caction.getOperation()));}

			}
		}
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void dispose(){
		if(paramsComposite!=null) {
			paramsComposite.dispose();
		}
		if(argumentComposite!=null) {
			argumentComposite.dispose();
		}
		super.dispose();
	}
}
